BioStacks
Life Extension

Super-Absorbable Co-Q10 (Ubiquinone) 50 mg with d-Limonene

1 Softgel · 60 servings · $0.33/serving

11 / 100Very Poor

Best for

Score Breakdown

Formulation
14
Safety
75
Final score
11/100

Ingredients (2)

Ubiquinone

50%

Dose

50 mg

Target

100–300 mg

Form

Standard

D-Limonene

20%

Dose

100 mg

Target

500–1000 mg

Form

Premium

Other Ingredients (8)

Polysorbate 80Emulsifier

Chassaing et al. 2015 (Nature, PMID 25731162) tested polysorbate 80 directly and showed it thinned the gut mucus barrier, altered microbiota composition, and induced low-grade inflammation and metabolic syndrome in mice. The strongest human evidence is for a related emulsifier rather than polysorbate 80 itself: Chassaing 2022 (Gastroenterology, PMID 34774538) was a controlled human feeding RCT of carboxymethylcellulose (CMC) that found microbial encroachment into the mucus layer — polysorbate 80 has not been tested in an equivalent human trial. In vitro work (e.g. Roberts 2010) shows polysorbate 80 enhances bacterial translocation across intestinal epithelium, and observational data link overall dietary-emulsifier exposure to IBD risk. EFSA is mid re-evaluation of polysorbates (E432–E436). For a supplement excipient with purely cosmetic function (improving the look/texture of soft gels and liquids), the gut-barrier risk profile is unfavorable when safer alternatives (sunflower lecithin, MCT carriers, gum acacia) are widely available.

CarobFlavor

Roasted powder from carob tree pods, used as a caffeine-free chocolate/cocoa substitute for flavor and brown color

Mixed TocopherolsAntioxidant

Natural vitamin E used as preservative

GelatinCapsule

Protein derived from collagen, used in traditional capsule shells

GlycerinHumectant

Sweet-tasting liquid used in soft capsules and liquids

Purified WaterSolvent

Water meeting USP specifications used as solvent/vehicle in gummies and liquids

Rosemary ExtractPreservative

Natural plant-derived antioxidant used to preserve freshness and prevent oxidation of oils and fats in supplements

Ethyl Oleate

Not reviewed yet

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.